/* Shared tokens + article typography for Top Engage blog — matches the main landing page */
:root{
  --bg:#ffffff;
  --bg-soft:#f3f8f4;
  --surface:#ffffff;
  --mint:#e6f7ec;
  --mint-ink:#0a7a3c;
  --ink:#0e1a12;
  --ink-2:#4f5f55;
  --ink-3:#8a978f;
  --line:#dfe8e2;
  --green:#06c755;
  --green-deep:#05a847;
  --green-ink:#ffffff;
  --gold:#ffb000;
  --gold-soft:#fff4d6;
  --gold-ink:#7a4d00;
  --shadow:0 10px 30px rgba(14,26,18,.10);
  --radius:20px;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0b110d;
    --bg-soft:#101a14;
    --surface:#151f19;
    --mint:#132a1c;
    --mint-ink:#5fe08f;
    --ink:#eef5f0;
    --ink-2:#a7b5ac;
    --ink-3:#6e7d74;
    --line:#233129;
    --green:#06c755;
    --green-deep:#22d66a;
    --green-ink:#06210f;
    --gold:#ffc23d;
    --gold-soft:#3a2c0c;
    --gold-ink:#ffd76e;
    --shadow:0 10px 30px rgba(0,0,0,.45);
  }
}
:root[data-theme="dark"]{
  --bg:#0b110d;
  --bg-soft:#101a14;
  --surface:#151f19;
  --mint:#132a1c;
  --mint-ink:#5fe08f;
  --ink:#eef5f0;
  --ink-2:#a7b5ac;
  --ink-3:#6e7d74;
  --line:#233129;
  --green:#06c755;
  --green-deep:#22d66a;
  --green-ink:#06210f;
  --gold:#ffc23d;
  --gold-soft:#3a2c0c;
  --gold-ink:#ffd76e;
  --shadow:0 10px 30px rgba(0,0,0,.45);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-soft);
  color:var(--ink);
  font-family:"Anuphan","Noto Sans Thai","Sarabun",system-ui,sans-serif;
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,.display{
  font-family:"Prompt","Kanit","Noto Sans Thai",system-ui,sans-serif;
  line-height:1.25;
  margin:0;
  text-wrap:balance;
}
p{margin:0}
a{color:inherit}
img{max-width:100%}

.wrap{max-width:720px;margin:0 auto;padding-inline:20px;padding-block:0 100px}

/* top bar */
.top{display:flex;align-items:center;justify-content:space-between;padding-block:16px}
.brand{display:flex;align-items:center;gap:8px;font-family:"Prompt",sans-serif;font-weight:700;font-size:17px;letter-spacing:-.01em;text-decoration:none;color:var(--ink)}
.brand .dot{width:26px;height:26px;border-radius:9px;background:var(--green);display:grid;place-items:center;color:#fff}
.brand .dot svg{width:15px;height:15px}
.back{font-size:13px;color:var(--ink-2);text-decoration:none;font-weight:500}

/* article header */
.kicker{font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--mint-ink);margin-bottom:10px}
article h1{font-size:clamp(28px,6vw,38px);font-weight:700;letter-spacing:-.015em;margin-top:4px}
.meta{margin-top:12px;font-size:13px;color:var(--ink-3);display:flex;gap:8px;align-items:center}
.lede{margin-top:20px;font-size:18px;color:var(--ink-2);line-height:1.65}

/* body typography */
article .body{margin-top:28px;max-width:68ch}
article .body h2{font-size:22px;font-weight:700;margin-top:38px;letter-spacing:-.01em}
article .body h3{font-size:17px;font-weight:600;margin-top:24px}
article .body p{margin-top:14px;color:var(--ink);font-size:16px;line-height:1.75}
article .body ul,article .body ol{margin-top:14px;padding-left:22px;color:var(--ink);line-height:1.75}
article .body li{margin-top:6px}
article .body strong{font-weight:700}

/* callout CTA box */
.callout{
  margin-top:28px;background:var(--mint);border-radius:var(--radius);padding:20px;
  display:flex;flex-direction:column;gap:10px;
}
.callout .t{font-family:"Prompt",sans-serif;font-weight:700;font-size:17px;color:var(--mint-ink)}
.callout p{font-size:14px;color:var(--ink-2)}

/* cta button (shared style) */
.cta{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  background:var(--green);color:var(--green-ink);
  font-family:"Prompt",sans-serif;font-weight:700;font-size:16px;
  border-radius:14px;padding:13px 18px;text-decoration:none;
  box-shadow:0 10px 24px rgba(6,199,85,.28);
  transition:background .12s ease;
}
.cta:hover{background:var(--green-deep)}
.cta svg{width:20px;height:20px;flex:none}

/* related / index list */
.related{margin-top:44px;border-top:1px solid var(--line);padding-top:24px}
.related h2{font-size:18px;font-weight:700}
.post-list{display:flex;flex-direction:column;gap:0;margin-top:14px}
.post-card{
  display:block;padding:16px 0;border-top:1px solid var(--line);text-decoration:none;color:inherit;
}
.post-list .post-card:first-child{border-top:0}
.post-card .cat{font-size:12px;font-weight:600;color:var(--mint-ink);letter-spacing:.04em;text-transform:uppercase}
.post-card h3{font-size:17px;font-weight:600;margin-top:6px}
.post-card p{font-size:14px;color:var(--ink-2);margin-top:6px}

footer{padding-block:36px 8px;text-align:center;font-size:12px;color:var(--ink-3);display:flex;flex-direction:column;gap:4px}

.bar{
  position:fixed;left:0;right:0;bottom:0;z-index:10;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:color-mix(in srgb,var(--bg) 88%,transparent);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-top:1px solid var(--line);
}
.bar .in{max-width:440px;margin:0 auto}
.bar .cta{width:100%;padding:15px 18px;font-size:16px;border-radius:16px}